Fischer-Tropsch synthesis in a bottom split reactive dividing wall column

Arjomand, Alireza; Panahi, Mehdi; Rafiee, Ahmad

doi:10.1016/j.cep.2019.107798

Cited by 4 publications

(1 citation statement)

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“…Currently, there are numerous studies on DWC, including its design, optimization, and control, and it has been widely used in industrial applications. − The reactive dividing wall column results from the further coupling of the reactive distillation and the dividing wall column. It has both advantages and has been widely studied by scholars. − However, due to the lack of experimental support, it has not yet been industrially applied . Although the boiling point order of the solketal synthesis system is theoretically unfavorable for the reactive distillation process since acetone and glycerol are the lightest and heaviest substances as reactants, our previous research successfully realized the process of reactive distillation for the synthesis of solketal in a pilot plant using seepage catalytic packing internal, and the inspiring results illustrate the feasibility of the synthesis process in reactive distillation.…”

Section: Introductionmentioning

confidence: 98%

Experimental Investigation, Process Design, and Optimization Analysis on the Production of Solketal in the Reactive Dividing Wall Column

Liu

Cong

et al. 2021

Ind. Eng. Chem. Res.

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This paper aims at intensifying the synthesis process of solketal by the reactive dividing wall column (RDWC) through experiments and simulation optimization and proposes a high-efficiency production process of solketal. A lab-scale RDWC was set up to verify the feasibility of synthesizing solketal in the RDWC. The effects of different operating parameters, such as reflux ratio, liquid split ratio, molar ratio of acetone to glycerol, feeding method, and the mass flow rate of side stream, on the experimental process have also been demonstrated and analyzed. Furthermore, an equilibrium-stage model developed by Aspen Plus and verified through comparison with experiments was used for the following simulation to optimize and analyze the solketal synthesis process. The response surface methodology (RSM) was employed to optimize the multiobjective problem in RDWC. As a result, a novel competitive solketal synthesis process with an upper partition position RDWC was put forward, which could obtain 99.78% conversion and 99.22 wt % solketal product purity at a 2:1 molar ratio of acetone to glycerol and had a lower energy consumption per unit mass product of 2509.2 J·g–1 compared with other processes. The achievements of this research provide a new way to produce solketal and a significant guideline for the industrial applications of solketal synthesis in the reactive dividing wall column.

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